摘要
中国农业近十年来的巨大变化,伴随着农村环境的明显恶化,这是农村经济迅速发展所付出的代价。其中主要环境问题是水土流失、林草植被破坏、土地质量和土壤肥力下降、城乡废弃物和化肥农药污染以及水资源的耗竭。人口增长、收入过低和现代技术的高成本,加重了这些环境问题。生态农业作为一种农村发展新策略的提出,为解决农业常规发展的问题,找到了新的途径。本文介绍了生态农业的概念、组成部分和现行措施,并对其初步效益作了讨论。
( 1 ) The great changes in Chinese agriculture during the past 10 years have been accompanied by significant deterioration of the rural environment as a cost of rapid development in the rural economy.( 2 ) Among the most important environmental effects are soil erosion, destruction of forest and grassland vegetation,decrease of land quality and soil fertility, pollution by urban-industrial wastes and agricultural chemicals, and the depletion of water resources.( 3 ) Population growth, low income and the expense of modern technology have made these environmental problems worse.( 4 ) A new strategy of rural development, ecological agriculture, has been suggested as an alternative to the conventional way of developing agricuiture.( 5 ) Concept, components and current measures of ecological agriculture are introduced and the preliminary results are discussed.
出处
《生态学报》
CAS
CSCD
北大核心
1990年第1期37-44,共8页
Acta Ecologica Sinica
